heatz1express
Petty Officer 2nd Class
- Joined
- Jun 23, 2004
- Messages
- 115
Looking for guidance.
1984 YAMAHA 115 h.p. 2-stroke with bypassed oil injection running 50:1 pre-mix. I've had it two years and has been minty until recently.
Went from occasional hard start (I tried everything - choke in, choke out, throttle, no throttle, with remote choke and with manual choke, all combinations --- NOTHING and then.. for no explainable reason she fires up on the umpteenth try!!! Once started, ran/runs as it should and can be shut off and re-started no problem. Seems to coincide with being run and then left for a day or two. If I stop for a couple of hours, no problem she fires right up with no choke or throttle needed. At first it did it only once in a while and recently it has been happening more frequently to the point where now it will not start at all! Usually when it happens the engine floods right away, and when it finally starts it smokes quite a bit. Advancing the throttle with no choke does not seem to matter - starts when IT WANTS to start - sometimes with choke on sometimes with choke off, sometimes with or without manual choke set and flicking the remote switch too!
Put new plugs in today and tried. it fired once - then nothing!!! (old plugs were wet and fouled somewhat)
ANY suggestions and I don't mean "Buy a Honda or buy a Merc"! I love my Yamahas - it's just that right now this one is pissing me off!!! I was thinking sticky floats or something. Now beginning to wonder if maybe it is the computer or something electrical.
the stupid thing is, once started, it has always run great - no issues. Although, it does seem to be drinking more fuel than it should be.
A friend suggested that maybe it's the ignition, but wouldn't that sort of problem flair up while running, along with most other possible electrical troubles?
"guidance" would be much appreciated.
Today I checked for spark and discovered that there is none! Atleast not when it won't start. every so often it does fire? so intermittent spark - very weird!
1984 YAMAHA 115 h.p. 2-stroke with bypassed oil injection running 50:1 pre-mix. I've had it two years and has been minty until recently.
Went from occasional hard start (I tried everything - choke in, choke out, throttle, no throttle, with remote choke and with manual choke, all combinations --- NOTHING and then.. for no explainable reason she fires up on the umpteenth try!!! Once started, ran/runs as it should and can be shut off and re-started no problem. Seems to coincide with being run and then left for a day or two. If I stop for a couple of hours, no problem she fires right up with no choke or throttle needed. At first it did it only once in a while and recently it has been happening more frequently to the point where now it will not start at all! Usually when it happens the engine floods right away, and when it finally starts it smokes quite a bit. Advancing the throttle with no choke does not seem to matter - starts when IT WANTS to start - sometimes with choke on sometimes with choke off, sometimes with or without manual choke set and flicking the remote switch too!
Put new plugs in today and tried. it fired once - then nothing!!! (old plugs were wet and fouled somewhat)
ANY suggestions and I don't mean "Buy a Honda or buy a Merc"! I love my Yamahas - it's just that right now this one is pissing me off!!! I was thinking sticky floats or something. Now beginning to wonder if maybe it is the computer or something electrical.
the stupid thing is, once started, it has always run great - no issues. Although, it does seem to be drinking more fuel than it should be.
A friend suggested that maybe it's the ignition, but wouldn't that sort of problem flair up while running, along with most other possible electrical troubles?
"guidance" would be much appreciated.
Today I checked for spark and discovered that there is none! Atleast not when it won't start. every so often it does fire? so intermittent spark - very weird!
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